Levelling without leaving the continent

[Daldaen]

The Warrens were good for 15-25 but that was a late Velious addition I think? Or mabye it was even later I don't remember exactly.

Stonebrunt was decent for 25-35 as well, another Velious addition as well I believe.

tl;dr Odus wasn't well thought out in terms of mid-upper level dungeons and was remedied as the game progressed but it was too little too late IMO.